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Journal of Nanomaterials
Volume 2014, Article ID 143094, 7 pages
http://dx.doi.org/10.1155/2014/143094
Research Article

Transparent Electrodes with Nanotubes and Graphene for Printed Optoelectronic Applications

1Institute of Metrology and Biomedical Engineering, Faculty of Mechatronics, Warsaw University of Technology, św. A. Boboli 8, 02-525 Warsaw, Poland
2Institute of Electronic Materials Technology, Wólczyńska 133, 01-919 Warsaw, Poland

Received 1 March 2014; Revised 20 June 2014; Accepted 20 June 2014; Published 24 July 2014

Academic Editor: Zheng-Hong Huang

Copyright © 2014 Marcin Słoma et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We report here on printed electroluminescent structures containing transparent electrodes made of carbon nanotubes and graphene nanoplatelets. Screen-printing and spray-coating techniques were employed. Electrodes and structures were examined towards optical parameters using spectrophotometer and irradiation meter. Electromechanical properties of transparent electrodes are exterminated with cyclical bending test. Accelerated aging process was conducted according to EN 62137 standard for reliability tests of electronics. We observed significant negative influence of mechanical bending on sheet resistivity of ITO, while resistivity of nanotube and graphene based electrodes remained stable. Aging process has also negative influence on ITO based structures resulting in delamination of printed layers, while those based on carbon nanomaterials remained intact. We observe negligible changes in irradiation for structures with carbon nanotube electrodes after accelerated aging process. Such materials demonstrate a high application potential in general purpose electroluminescent devices.